Tvheadend

I'm trying to compile the latest git clone of tvheadend in Debian. I disabled libav when configuring to allow it to make, but the autobuild script doesn't honor it.

src/plumbing/transcoding.c: In function ‘transcoder_stream_subtitle’:
src/plumbing/transcoding.c:219:5: error: implicit declaration of function ‘avcodec_open’ [-Werror=implicit-function-declaration]
     if (avcodec_open(ictx, icodec) < 0) {
     ^
src/plumbing/transcoding.c: In function ‘transcoder_stream_audio’:
src/plumbing/transcoding.c:332:28: error: ‘AV_CH_LAYOUT_MONO’ undeclared (first use in this function)
     octx->channel_layout = AV_CH_LAYOUT_MONO;
                            ^
src/plumbing/transcoding.c:332:28: note: each undeclared identifier is reported only once for each function it appears in
src/plumbing/transcoding.c:336:28: error: ‘AV_CH_LAYOUT_STEREO’ undeclared (first use in this function)
     octx->channel_layout = AV_CH_LAYOUT_STEREO;
                            ^
src/plumbing/transcoding.c:340:28: error: ‘AV_CH_LAYOUT_SURROUND’ undeclared (first use in this function)
     octx->channel_layout = AV_CH_LAYOUT_SURROUND;
                            ^
src/plumbing/transcoding.c:344:28: error: ‘AV_CH_LAYOUT_QUAD’ undeclared (first use in this function)
     octx->channel_layout = AV_CH_LAYOUT_QUAD;
                            ^
src/plumbing/transcoding.c:348:28: error: ‘AV_CH_LAYOUT_5POINT0’ undeclared (first use in this function)
     octx->channel_layout = AV_CH_LAYOUT_5POINT0;
                            ^
src/plumbing/transcoding.c:352:28: error: ‘AV_CH_LAYOUT_5POINT1’ undeclared (first use in this function)
     octx->channel_layout = AV_CH_LAYOUT_5POINT1;
                            ^
src/plumbing/transcoding.c:356:28: error: ‘AV_CH_LAYOUT_6POINT1’ undeclared (first use in this function)
     octx->channel_layout = AV_CH_LAYOUT_6POINT1;
                            ^
src/plumbing/transcoding.c:360:28: error: ‘AV_CH_LAYOUT_7POINT1’ undeclared (first use in this function)
     octx->channel_layout = AV_CH_LAYOUT_7POINT1;
                            ^
src/plumbing/transcoding.c: In function ‘transcoder_init_subtitle’:
src/plumbing/transcoding.c:861:3: error: implicit declaration of function ‘avcodec_alloc_context’ [-Werror=implicit-function-declaration]
   ss->sub_ictx = avcodec_alloc_context();
   ^
src/plumbing/transcoding.c:861:16: error: assignment makes pointer from integer without a cast [-Werror]
   ss->sub_ictx = avcodec_alloc_context();
                ^
src/plumbing/transcoding.c:862:16: error: assignment makes pointer from integer without a cast [-Werror]
   ss->sub_octx = avcodec_alloc_context();
                ^
src/plumbing/transcoding.c: In function ‘transcoder_init_audio’:
src/plumbing/transcoding.c:953:16: error: assignment makes pointer from integer without a cast [-Werror]
   as->aud_ictx = avcodec_alloc_context();
                ^
src/plumbing/transcoding.c:954:16: error: assignment makes pointer from integer without a cast [-Werror]
   as->aud_octx = avcodec_alloc_context();
                ^
src/plumbing/transcoding.c: In function ‘transcoder_init_video’:
src/plumbing/transcoding.c:1063:16: error: assignment makes pointer from integer without a cast [-Werror]
   vs->vid_ictx = avcodec_alloc_context();
                ^
src/plumbing/transcoding.c:1064:16: error: assignment makes pointer from integer without a cast [-Werror]
   vs->vid_octx = avcodec_alloc_context();
                ^
cc1: all warnings being treated as errors